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Agilent

E 4404 B Spectrum Analyzer

Agilent E 4404 B Spectrum Analyzer family
Research Quality: 20% complete
E 4404 B Spectrum Analyzer — Inventory photo
Fig. 01E 4404 B Spectrum AnalyzerInventory photo[1]

What is it?

Why won't it start?

Documented failure modes, common issues, and field considerations.

  • One source states a unit does not self-align and displays 'LO Unlock' and 'LO Unlevel' codes.
  • One source describes a unit as being sold 'as-is'.

What do the numbers mean?

Power & electrical5

9 kHz - 6.7 GHz[1]
Accurate?
Unit measures RF across a set frequency range[1]
Accurate?
9kHz - 6.7GHz[2]
Accurate?
Unit measures accurate RF frequency across specified levels[2]
Accurate?
Unit measures RF across set frequency ranges[4]
Accurate?

Performance1

Unit powers on and passes start up alignments[2]
Accurate?

Configuration & options11

ESA- E Series[1]
Accurate?
Options
1D5, A4H, AYX[1]
Accurate?
Unit powers on and self-aligns[1]
Accurate?
Cables and other test equipment available separately[1]
Accurate?
Opt
STD, UK6[2]
Accurate?
Options
1D5, 1DR[3]
Accurate?
Unit powers on and measures accurate across specified frequency range[3]
Accurate?
Opt A4H[4]
Accurate?
Opt STD[5]
Accurate?
Unit does not self-align, displays 'LO Unlock and 'LO Unlevel' codes[5]
Accurate?
Unit being sold 'as-is'[5]
Accurate?
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What does it need to run?

Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.

  • Configuration9 kHz - 6.7 GHz[1]
  • ConfigurationUnit measures RF across a set frequency range[1]
  • Configuration9kHz - 6.7GHz[2]
  • ConfigurationUnit measures accurate RF frequency across specified levels[2]
  • ConfigurationUnit measures RF across set frequency ranges[4]

Where are the manuals?

Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.

Not publicly documented

Field notes

No research found yet — worked with this tool? Share what you know.

Not publicly documented

The following facts about the E 4404 B Spectrum Analyzer are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.

  • No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the E 4404 B Spectrum Analyzer are on record.

    Answerable by: OEM historical records or a trade-press announcement

  • No publicly documented variants, configuration options, or revision breakpoints of the E 4404 B Spectrum Analyzer are on record.

    Answerable by: an OEM product catalog or an engineer who ordered or specified the tool

  • The control-system platform and OS era of the E 4404 B Spectrum Analyzer are not on record.

    Answerable by: an engineer who operated it or OEM installation records

  • The process node or technology generation of the E 4404 B Spectrum Analyzer is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

  • No publicly documented compatible parts, consumables, or accessories for the E 4404 B Spectrum Analyzer are on record.

    Answerable by: an OEM parts catalog or a service engineer

Sources & citations

Sources (5)Every fact above is drawn from these public sources
  1. [1]Inventory photo
  2. [2]Inventory photo
  3. [3]inventory listing
  4. [4]inventory listing
  5. [5]inventory listing
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Last updated Jul 29, 2026.

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